Sewing-machine.



No. 646,932. PafehedAprJs, 1900.

A. .'rETBAuLT. SEWING. MACHINE. (No Modal.) V(Application led Apr-.A6, 1898.) 5 .Sheets`sheet 2* 33'@ @Qriorneys No. 646,932.'V Patented Apr. a', |900.

A A. TI-:TRAULT` SEWING MACHINE.

liat'on dA :.6 8

pp c l p 1 98.) (nu Model.) l 5 sneets-sheet 3.

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No. 646,932. Patented Apr. 3',- |900.

A. TTnAu'LT.

SEWING MACHINE.

(Application led Apr. 8, 1898.) (No Model.) 5 Sheets-Sheet 4.

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` Patented Apr. 3, |900'.

A. TETHAULT.

SEWING HAGHINEQ (Appuwion med Api. a, 199s.)

(In Rodel.)

5 Shoah-Sheet UNITED STATES .PATENT OFFICE.N

`AMDE TTRAULT, or MONTREAL, cANADA.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent LIQ-646,932, dated. April 3, 1900.

Application filed April 6 1898.

To CLZ whom, t may concern:

Be it known that I, AMD'E TTRAULT, a citizen of the Dominion of Oanada, residing at the city and district of Montreal, Province of Quebec, Canada, have invented certain.

new and useful Improvements in Sewing-Ma# chines, (for which Letters Patent of the Dominion of Canada were granted January 'l, 1899, No. 62,205, the application for which Io Wasiiled May 1G, 1898, Serial No. 8l,795;) and I do hereby declare the following to be a clear, full, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in sewing-machines.

One object of my invention is to provide a sewing-machine which can be readily moved zo into and out of a closed compartment.

A further object is to provide a sewing mechanism which will be simple and durable in construction and of easy manipulation.

A further object is to provide a device in 2 5 which the operating mechanism will be practically inclosedand in compact form.

To these and other ends my invention consists in theimproved construction and combination of parts hereinafter fully described,

3o and particularly pointed out in the appended claims.

In the drawings, inwhich similar letters of reference indicate similar parts in all of the views, Figure l is a plan view of a sewing- 3 5 machine in its closedv position, the table-cover being shown in dotted lines. Fig. 2 is a sectional view of a sewing-machine table. Fig.

3 is a sectional viewshowing the mechanism for operatingthe machine. Figs. 4, 5, and

4o 6 are perspective views of a portion of the machine mechanism, taken from the under side. Fig. 7 is a perspective view of my improved machine in its closed position. Fig.

8 is a similar view showing the machine in its 43' open or operative position. Fig. 9 is a bottom plan view ofthe Work table or plate, showing the relative positions of the operating parts. Fig. 10 is a similar View showing the parts in adifferent position. Fig. ll is 5o an elevation of the feeding mechanism.

A designates the table` portion of my device, which consists of the top portion o and Serial No. 676,666. (No model.)

the supporting-legs a. The top portion a is formed of the rectangular frame portion a2, to which is connected the table-top 0.3. (Shown in dotted lines in Fig. l.) One end of the top portion d is provided with a suitable drawer o4, which maybe provided, if desired, with a hinged cover o5, which when the machine is in use forms an extension to the top of the table, although such cover maybe dispensed with, as is shown in Fig. 8.

The supporting-legs ot' are formed angular, as shown in Figs. l, '7, and 8, and are connected centrally near their bottom by the treadle-bar a5, as shown in Figs. 3, 7, and 8. The legs may be of any fanciful design desired, and at the meeting edges of each angular portion of one of the legs, preferably the one on the right, a vertical bearing o7 is formed for the reception of the upright shaft as. The opposite leg is provided with a dummy bearing to make the machine appear symmetrical.

The lower end of the shaft as is provided with a segmental bevel-gear aiwhich is adapted to be actuated by a suitable gear al", attached to or formed integral with the treadle all. The upper end of the shaft as is pro vided with a fixed extension am, to which is pivotally connected a pitman a, the free end of which is pivotally connected to a pivotpoint @15, formedat one end of supporting-v lever al, the opposite end of which is pivot ally mounted at a suitable point, preferably above the dumm bearing. vLoosely mounted on the shaft o above the extension (1.12 is the horizontal balance-wheel et", to which is pivotally connected one end of a pitman a, the freeend of which is pivotally mounted on the pivot-point @15. By this construction it Will be apparent that when the treadle is operated the gear ai@ Will serve to rotate the segA mental gear cti in one direction, which will in turn rotate the shaft in a corresponding direction. The rotatory movement of the shaft o8 causes the extension cl2, which is secured to the shaft as, to be moved backward or for'- Ward in the direction of movement of the eX tension. As a movement of the pitman om changes the position'of the pivot-point L15 the pitman am, being connected to the pivotpoint, is moved in a corresponding manner to that of the pitman als, and thus moves the balance-Wheel.

Secured to the under side of the top of the table is a frame Z9, in which is secured a suitable shaft Z9. Pivotally mounted on the shaft Z9' is the head B, which when not in use rests within the chamber formed under the top of the table, a lug Z92 serving to hold it in position.

Vhen it is desired to use the machine, a hinged portion am of the top is raised and the head rotated on shaft Z9' until it is in a vertical position, when the hinged portion d falls back into position and the machine is ready for operation.

The head B is of approximately the usual shape longitudinally, but is narrow transversely, the mechanism permitting ot the use of'an exceedingly-narrow frame.

The needle-bar i2 is of the usual form and is actuated by means of an oscillating lever Z94, pivotally mounted in the arm of the machine. The rear end of the lever Z9L1 is pivotally connected by means of a link Z95 with a vertically-ui'wight oscillating lever Z96, pivotally connected, as at Z9?, to one end of a pitman Z98, the free end of which is connected to a sliding bearing Z99, mounted on the shaft Z9'. The sliding bearing bf is moved longitudinally of the shaft Z/ by means of a pitman Z910, pivotally connected to said bearing and having its opposite end adapted to be pivotally connected to a drive-wheel Z911, mounted in an extensible bearing Z912, the drive-wheel being rotated by means of a belt or similar connection with the balance-wheel an. As the drive-wheel Z911 and the pitman Z910 remain in a horizontal position, while the head may assume various positions, I have formed the connection between the pitman d10 and the sliding bearing Z99 similar to a hinge, as shown in Figs. 4, 9, and lO, the shaft Z9 forming the axis of the hinged connection between the sewing-machine head and its support, thus insuring a positive movement of the bearing Z99 regardless of the position of the head B. By this construction it will be obvious that as the drive-wheel is rotated the pitman Z910 will cause the bearing Z99 to be reciprocated on the shaft Z9', imparting a movement to the vertical oscillating lever Z9G and through the medium of the link Z95 to the oscillating lever Z94 and moves the needle-bar. The oscillating lever Z96 has its pivot-point arranged in such manner that the connecting ends of the lever Z96 and the link 195 move past a line drawn centrally through the pivotal points of the lever Z9( and the connection between the lever Z94 and link Z95 in both directions, thus giving the needle the following motions beginning when the needle is at its upper limit of movement, downward to its full extent, (which is reached when the three pivotal points are in alinement,) a short movement upward, a return to its lowermost position, and a full stroke upward to its initial position. By this construction the needle is in its downward position only when its presence is needed to catch the thread from the shuttle, it being at all other times away from the movement of the shuttle, although when at the end of its short upward stroke the eye of the needle is below the work being sewed.

The sliding bearing Z99 is provided with shuttle-carrying arms Z913, within which the shuttle Z914 is adapted to be placed, the inner side of the shuttle being adapted to move against the face of the slide Z915, formed beneath the table portion of the head B. As the shuttle and the needle-operating mechanism have their movement from the same point (the bearing 9) it is obvious that there is no possible liability of either of the two elements being disarranged in such manner as to disturb the action of the machine.

The work-feed mechanism of the machine is operated by the movement of the pitman Z910 and bearing Z99 in the following manner:

YPivotally connected to the under side of the work-plate is an' oscillating arm Z916, to which is pivotally connected spring-actuated arm Z917, to which the feed-block Z918 is removably affixed, as shown in Fig. G, the spring Z91g serving to normally hold the feed-block Z918 in a position below the work being sewed, as shown in dotted lines in Fig. 1l. The lower face of the horizontal portion Z920 of the arm Z917 is inclined and is adapted to contact with the upper inclined face of a lug Z921, formed on the sliding bearing Z92, the contact serving to raise the feed-block Z918 above the level of the workplate and in position to carry the work forward, the contact taking place when the sliding bearing is near the end of its movement toward the left. When the contact between the lug Z921 and the face of the portionZ920 has been made, as shown in full lines in Fig. l1, and as the sliding bearing Z99 changes the direction of its movement, an extension Z922, formed on the end of the pitman Z910, contacts with a vertical face Z923 of the rear portion Z92'l of the arm Z917 and moves said rear portion forward, carrying with it the feed-block Z918, the positions assumed being as shown in Fig. 9. The contact between the extension Z922 and the face Z922 is made when the end of the pitman blo, secured to the drive wheel, has slightly passed the cent-ral point, and as the wheel continues its rotatory movement the pitman will move away from the central line, thus causing the extension Z922 to be moved forward gradually, thus feeding the work forward with a gentle movement. After the work has been fed forward the feed-block Z918 passes downward by reason of the inclined face of the lug Z920 passing from the inclined face Z921, the spring Z919 forcing the arm Z917 downward. A spring Z925 serves to hold the rear portion Z924 in its normal position and against the face of the extension Z922.

To regulate the length of the stitch, I provide a spring-actuated rod or plate Z926, having its forward end provided with an inclined face Z927, against which the inclined face Z928 of the rear portion Z924 is adapted to abut when in its normal position. A suitable set-screw IOO IIO

IIS

b2, secured above the .work-table and provided with a conical lower end, serves to move the rod or plate 526 forward to shorten the limit of movement of the rear portion Z224, and thus shorten the length of the feed, the spring serving to force the rod or plate Z126 backward when the set-screw b2 is released from its contact with the rod or plate. Y

To readily stop the movement of the machine, I provide a grip bio, secured to the oscillating lever h6, by means of which the movement of the lever can be readily stopped, and thus stop the movement of all of the parts. C

A thread-tension plate Z931, formed of suitable resilient material, is secured to the side of the arm, the tension being regulated by means ofa set-screw b3?.

As shown in Fig. 8, I may use a treadle formed in two parts, allowing `the treadle to be folded, making thecomplete machine one which is neat and attractive in appearance. The balance-wheel and its immediate connecting parts are mounted within the chamber formed beneath the `table-top, and thus prevents dust accumulation, 85o.

I-Iaving thus described myinvention, what I claim as new is- Y 1. A sewing-machine comprising a frame; a head and work-plate pivotally mounted within said frame; sewing mechanism located within said head and plate; a wheel mounted on said frame, having operative connection with said sewing mechanism; a drive-wheel mounted below said frame on a horizontal plane with said wheel and operatively connected therewith, said drive-wheel and said wheel retaining their positions regardless of the position of said head and table; and means for imparting a rotary movement to said drive-wheel.

2. The combination with a a chamber normally closed; of a sewing-macabinet, having chine head and work-plate pivotally mounted within said chamber and adapted to extend therefrom when in position for use; sewing mechanism mounted in said head and table; a wheel mounted within said chamber for operating said sewing mechanism; a drivewheel, operativelyconnected to said wheel; and means for imparting movement` to said drive-wheel.

3. A sewing-machine, comprisingaframe; a shaft secured therein; a head and workplate pivotally mounted on said shaft; a shuttle-carrier mounted to have reciprocatory movement on said shaft; a needle-bar operatively connected to said shuttle-carrier and means 'for imparting movement to said shut tlc-carrier.

4. A sewing-machine, comprising a head and work-plate; a shuttle-carrier mounted to have a reciprocating movement in said workplate; a needle-bar operatively connected to said shuttle-carrier workafeed mechanism locatedon said plate, said mechanism being operated by the movement of said shuttlecarrier; and means for imparting movement to said shuttle-carrier.

5. A sewing-machine, comprising a head and work-plate; a shuttle-carrier mounted to have a reciprocating movement on said Workplate; a needle-bar operatively connected to said shuttle-carrier; work-feed mechanism located on said plate and operated by the movement of said shuttle-carrier, said mechanism having a regulated movement; means for regulating the movement of said mechanism; and means for imparting movement to said shuttle-carrier. V

In witness whereof I have hereunto set my hand in the presence of two witnesses.

AMDEE TTRAULT. Witnesses:

HORACE G. SEITZ, J. A. MARION. 

